Gimbal lock is a complicated and counter-intuitive engineering phenomenon where you need more than 3 gimbals to orient something in 3 dimensions. It is very well-explored, modeled, and understood, up to some very intricate and difficult mathematics.
Here, let me try
>gimbal lock is a phenomenon invented by the (((spinning jew))) to sell more expensive navigation and control systems with an extra gimbal axis
And in Avaiation Photography like that used on Helecopters, Drones, and Jet's it means that the Gimbal camera has locked onto a target and will continue to track it even if it's moving and the amera platform its on is moving.